<!DOCTYPE html><html lang="zh-CN" data-theme="light"><head><meta charset="UTF-8"><meta http-equiv="X-UA-Compatible" content="IE=edge"><meta name="viewport" content="width=device-width, initial-scale=1.0,viewport-fit=cover"><title>常用知识点 | East'blog</title><meta name="author" content="侯玉东"><meta name="copyright" content="侯玉东"><meta name="format-detection" content="telephone=no"><meta name="theme-color" content="#ffffff"><meta name="description" content="常用知识点">
<meta property="og:type" content="article">
<meta property="og:title" content="常用知识点">
<meta property="og:url" content="https://houyudong1989.gitee.io/blog/2023/12/04/harmonyOS/%E5%B8%B8%E7%94%A8%E7%9F%A5%E8%AF%86%E7%82%B9/index.html">
<meta property="og:site_name" content="East&#39;blog">
<meta property="og:description" content="常用知识点">
<meta property="og:locale" content="zh_CN">
<meta property="og:image" content="https://houyudong1989.gitee.io/blog/img/library1.jpeg">
<meta property="article:published_time" content="2023-12-04T12:10:10.122Z">
<meta property="article:modified_time" content="2024-03-27T02:07:23.932Z">
<meta property="article:author" content="侯玉东">
<meta property="article:tag" content="harmonyOS">
<meta name="twitter:card" content="summary">
<meta name="twitter:image" content="https://houyudong1989.gitee.io/blog/img/library1.jpeg"><link rel="shortcut icon" href="/blog/img/head.jpg"><link rel="canonical" href="https://houyudong1989.gitee.io/blog/2023/12/04/harmonyOS/%E5%B8%B8%E7%94%A8%E7%9F%A5%E8%AF%86%E7%82%B9/index.html"><link rel="preconnect" href="//cdn.jsdelivr.net"/><link rel="preconnect" href="//busuanzi.ibruce.info"/><link rel="stylesheet" href="/blog/css/index.css"><link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/@fortawesome/fontawesome-free/css/all.min.css" media="print" onload="this.media='all'"><link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/@fancyapps/ui/dist/fancybox/fancybox.min.css" media="print" onload="this.media='all'"><script>const GLOBAL_CONFIG = {
  root: '/blog/',
  algolia: undefined,
  localSearch: undefined,
  translate: undefined,
  noticeOutdate: undefined,
  highlight: {"plugin":"highlighjs","highlightCopy":true,"highlightLang":true,"highlightHeightLimit":false},
  copy: {
    success: '复制成功',
    error: '复制错误',
    noSupport: '浏览器不支持'
  },
  relativeDate: {
    homepage: false,
    post: false
  },
  runtime: '',
  dateSuffix: {
    just: '刚刚',
    min: '分钟前',
    hour: '小时前',
    day: '天前',
    month: '个月前'
  },
  copyright: undefined,
  lightbox: 'fancybox',
  Snackbar: undefined,
  infinitegrid: {
    js: 'https://cdn.jsdelivr.net/npm/@egjs/infinitegrid/dist/infinitegrid.min.js',
    buttonText: '加载更多'
  },
  isPhotoFigcaption: false,
  islazyload: false,
  isAnchor: false,
  percent: {
    toc: true,
    rightside: false,
  },
  autoDarkmode: false
}</script><script id="config-diff">var GLOBAL_CONFIG_SITE = {
  title: '常用知识点',
  isPost: true,
  isHome: false,
  isHighlightShrink: false,
  isToc: true,
  postUpdate: '2024-03-27 10:07:23'
}</script><script>(win=>{
      win.saveToLocal = {
        set: (key, value, ttl) => {
          if (ttl === 0) return
          const now = Date.now()
          const expiry = now + ttl * 86400000
          const item = {
            value,
            expiry
          }
          localStorage.setItem(key, JSON.stringify(item))
        },
      
        get: key => {
          const itemStr = localStorage.getItem(key)
      
          if (!itemStr) {
            return undefined
          }
          const item = JSON.parse(itemStr)
          const now = Date.now()
      
          if (now > item.expiry) {
            localStorage.removeItem(key)
            return undefined
          }
          return item.value
        }
      }
    
      win.getScript = (url, attr = {}) => new Promise((resolve, reject) => {
        const script = document.createElement('script')
        script.src = url
        script.async = true
        script.onerror = reject
        script.onload = script.onreadystatechange = function() {
          const loadState = this.readyState
          if (loadState && loadState !== 'loaded' && loadState !== 'complete') return
          script.onload = script.onreadystatechange = null
          resolve()
        }

        Object.keys(attr).forEach(key => {
          script.setAttribute(key, attr[key])
        })

        document.head.appendChild(script)
      })
    
      win.getCSS = (url, id = false) => new Promise((resolve, reject) => {
        const link = document.createElement('link')
        link.rel = 'stylesheet'
        link.href = url
        if (id) link.id = id
        link.onerror = reject
        link.onload = link.onreadystatechange = function() {
          const loadState = this.readyState
          if (loadState && loadState !== 'loaded' && loadState !== 'complete') return
          link.onload = link.onreadystatechange = null
          resolve()
        }
        document.head.appendChild(link)
      })
    
      win.activateDarkMode = () => {
        document.documentElement.setAttribute('data-theme', 'dark')
        if (document.querySelector('meta[name="theme-color"]') !== null) {
          document.querySelector('meta[name="theme-color"]').setAttribute('content', '#0d0d0d')
        }
      }
      win.activateLightMode = () => {
        document.documentElement.setAttribute('data-theme', 'light')
        if (document.querySelector('meta[name="theme-color"]') !== null) {
          document.querySelector('meta[name="theme-color"]').setAttribute('content', '#ffffff')
        }
      }
      const t = saveToLocal.get('theme')
    
        if (t === 'dark') activateDarkMode()
        else if (t === 'light') activateLightMode()
      
      const asideStatus = saveToLocal.get('aside-status')
      if (asideStatus !== undefined) {
        if (asideStatus === 'hide') {
          document.documentElement.classList.add('hide-aside')
        } else {
          document.documentElement.classList.remove('hide-aside')
        }
      }
    
      const detectApple = () => {
        if(/iPad|iPhone|iPod|Macintosh/.test(navigator.userAgent)){
          document.documentElement.classList.add('apple')
        }
      }
      detectApple()
    })(window)</script><meta name="generator" content="Hexo 6.3.0"></head><body><div id="loading-box"><div class="loading-left-bg"></div><div class="loading-right-bg"></div><div class="spinner-box"><div class="configure-border-1"><div class="configure-core"></div></div><div class="configure-border-2"><div class="configure-core"></div></div><div class="loading-word">加载中...</div></div></div><script>(()=>{
  const $loadingBox = document.getElementById('loading-box')
  const $body = document.body
  const preloader = {
    endLoading: () => {
      $body.style.overflow = ''
      $loadingBox.classList.add('loaded')
    },
    initLoading: () => {
      $body.style.overflow = 'hidden'
      $loadingBox.classList.remove('loaded')
    }
  }

  preloader.initLoading()
  window.addEventListener('load',() => { preloader.endLoading() })

  if (true) {
    document.addEventListener('pjax:send', () => { preloader.initLoading() })
    document.addEventListener('pjax:complete', () => { preloader.endLoading() })
  }
})()</script><div id="sidebar"><div id="menu-mask"></div><div id="sidebar-menus"><div class="avatar-img is-center"><img src="/blog/img/head.jpg" onerror="onerror=null;src='/img/friend_404.gif'" alt="avatar"/></div><div class="sidebar-site-data site-data is-center"><a href="/blog/archives/"><div class="headline">文章</div><div class="length-num">70</div></a><a href="/blog/tags/"><div class="headline">标签</div><div class="length-num">26</div></a><a href="/blog/categories/"><div class="headline">分类</div><div class="length-num">18</div></a></div><hr class="custom-hr"/><div class="menus_items"><div class="menus_item"><a class="site-page" href="/blog/"><i class="fa-fw fas fa-home"></i><span> 首页</span></a></div><div class="menus_item"><a class="site-page" href="/blog/archives/"><i class="fa-fw fas fa-archive"></i><span> 时间轴</span></a></div><div class="menus_item"><a class="site-page" href="/blog/tags/"><i class="fa-fw fas fa-tags"></i><span> 标签</span></a></div><div class="menus_item"><a class="site-page" href="/blog/categories/"><i class="fa-fw fas fa-folder-open"></i><span> 分类</span></a></div><div class="menus_item"><a class="site-page" href="/blog/link/"><i class="fa-fw fas fa-link"></i><span> 友联</span></a></div><div class="menus_item"><a class="site-page" href="/blog/about/"><i class="fa-fw fas fa-heart"></i><span> 关于</span></a></div></div></div></div><div class="post" id="body-wrap"><header class="post-bg fixed" id="page-header" style="background-image: url('/blog/img/library6.jpeg')"><nav id="nav"><span id="blog-info"><a href="/blog/" title="East'blog"><img class="site-icon" src="/blog/img/head.jpg"/><span class="site-name">East'blog</span></a></span><div id="menus"><div class="menus_items"><div class="menus_item"><a class="site-page" href="/blog/"><i class="fa-fw fas fa-home"></i><span> 首页</span></a></div><div class="menus_item"><a class="site-page" href="/blog/archives/"><i class="fa-fw fas fa-archive"></i><span> 时间轴</span></a></div><div class="menus_item"><a class="site-page" href="/blog/tags/"><i class="fa-fw fas fa-tags"></i><span> 标签</span></a></div><div class="menus_item"><a class="site-page" href="/blog/categories/"><i class="fa-fw fas fa-folder-open"></i><span> 分类</span></a></div><div class="menus_item"><a class="site-page" href="/blog/link/"><i class="fa-fw fas fa-link"></i><span> 友联</span></a></div><div class="menus_item"><a class="site-page" href="/blog/about/"><i class="fa-fw fas fa-heart"></i><span> 关于</span></a></div></div><div id="toggle-menu"><a class="site-page" href="javascript:void(0);"><i class="fas fa-bars fa-fw"></i></a></div></div></nav><div id="post-info"><h1 class="post-title">常用知识点</h1><div id="post-meta"><div class="meta-firstline"><span class="post-meta-date"><i class="far fa-calendar-alt fa-fw post-meta-icon"></i><span class="post-meta-label">发表于</span><time class="post-meta-date-created" datetime="2023-12-04T12:10:10.122Z" title="发表于 2023-12-04 20:10:10">2023-12-04</time><span class="post-meta-separator">|</span><i class="fas fa-history fa-fw post-meta-icon"></i><span class="post-meta-label">更新于</span><time class="post-meta-date-updated" datetime="2024-03-27T02:07:23.932Z" title="更新于 2024-03-27 10:07:23">2024-03-27</time></span><span class="post-meta-categories"><span class="post-meta-separator">|</span><i class="fas fa-inbox fa-fw post-meta-icon"></i><a class="post-meta-categories" href="/blog/categories/harmonyOS/">harmonyOS</a></span></div><div class="meta-secondline"><span class="post-meta-separator">|</span><span class="post-meta-pv-cv" id="" data-flag-title="常用知识点"><i class="far fa-eye fa-fw post-meta-icon"></i><span class="post-meta-label">阅读量:</span><span id="busuanzi_value_page_pv"><i class="fa-solid fa-spinner fa-spin"></i></span></span></div></div></div></header><main class="layout" id="content-inner"><div id="post"><article class="post-content" id="article-container"><h1 id="元素约束"><a href="#元素约束" class="headerlink" title="元素约束"></a>元素约束</h1><h2 id="指定布局、控件宽高比-aspectRatio"><a href="#指定布局、控件宽高比-aspectRatio" class="headerlink" title="指定布局、控件宽高比 aspectRatio"></a>指定布局、控件宽高比 aspectRatio</h2><p><a target="_blank" rel="noopener" href="https://developer.harmonyos.com/cn/docs/documentation/doc-references-V3/ts-universal-attributes-layout-constraints-0000001427744784-V3">宽高比约束</a></p>
<blockquote>
<p>属性 aspectRatio可以指定当前组件的宽高比 aspectRatio &#x3D; width&#x2F;height。<br>当我们要设置控制拥有固定宽高比的时候，我们可以通过aspectRatio属性进行设置。可以选择设置aspectRatio以及width和height任意一个参数，系统会自动计算出他的高度或宽度。</p>
<p>1、当设置值为具体值时，如果大小超过父容器大小，会压缩当前容器大小，同时保持宽高比。</p>
<p>2、当设置值为百分比时，根据组件大小参照父容器大小，如超过父容器大小会显示不全。</p>
</blockquote>
<figure class="highlight javascript"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br></pre></td><td class="code"><pre><span class="line"></span><br><span class="line"><span class="title class_">Column</span>() &#123;</span><br><span class="line">     <span class="title class_">Row</span>()&#123;</span><br><span class="line">       <span class="comment">// height = width / 0.5= 80</span></span><br><span class="line">       <span class="title class_">Image</span>(<span class="string">&quot;&quot;</span>).<span class="title function_">backgroundColor</span>(<span class="string">&quot;#323333&quot;</span>).<span class="title function_">width</span>(<span class="number">40</span>).<span class="title function_">aspectRatio</span>(<span class="number">0.5</span>)</span><br><span class="line">       <span class="title class_">Divider</span>().<span class="title function_">strokeWidth</span>(<span class="number">3</span>).<span class="title function_">height</span>(<span class="string">&quot;100%&quot;</span>).<span class="title function_">vertical</span>(<span class="literal">true</span>)</span><br><span class="line">       <span class="comment">// width = height * 1 = 40</span></span><br><span class="line">       <span class="title class_">Image</span>(<span class="string">&quot;&quot;</span>).<span class="title function_">backgroundColor</span>(<span class="string">&quot;#323333&quot;</span>).<span class="title function_">height</span>(<span class="number">40</span>).<span class="title function_">aspectRatio</span>(<span class="number">1</span>)</span><br><span class="line">     &#125;  .<span class="title function_">width</span>(<span class="string">&#x27;100%&#x27;</span>).<span class="title function_">height</span>(<span class="number">210</span>)</span><br><span class="line">     <span class="title class_">Divider</span>().<span class="title function_">strokeWidth</span>(<span class="number">3</span>).<span class="title function_">width</span>(<span class="string">&quot;100%&quot;</span>)</span><br><span class="line">     <span class="title class_">Row</span>()&#123;</span><br><span class="line">       <span class="comment">// height = 50 / 0.5 =100%</span></span><br><span class="line">       <span class="title class_">Image</span>(<span class="string">&quot;&quot;</span>).<span class="title function_">backgroundColor</span>(<span class="string">&quot;#323333&quot;</span>).<span class="title function_">width</span>(<span class="string">&quot;50%&quot;</span>).<span class="title function_">aspectRatio</span>(<span class="number">0.5</span>)</span><br><span class="line">       <span class="title class_">Divider</span>().<span class="title function_">strokeWidth</span>(<span class="number">3</span>).<span class="title function_">height</span>(<span class="string">&quot;100%&quot;</span>).<span class="title function_">vertical</span>(<span class="literal">true</span>)</span><br><span class="line">       <span class="comment">// width = height * 1 = 50%</span></span><br><span class="line">       <span class="title class_">Image</span>(<span class="string">&quot;&quot;</span>).<span class="title function_">backgroundColor</span>(<span class="string">&quot;#323333&quot;</span>).<span class="title function_">height</span>(<span class="string">&quot;50%&quot;</span>).<span class="title function_">aspectRatio</span>(<span class="number">1</span>)</span><br><span class="line">     &#125;  .<span class="title function_">width</span>(<span class="string">&quot;100%&quot;</span>).<span class="title function_">height</span>(<span class="string">&quot;100%&quot;</span>).<span class="title function_">backgroundColor</span>(<span class="number">0xf2a21a</span>)</span><br><span class="line">   &#125;</span><br><span class="line">   .<span class="title function_">width</span>(<span class="string">&#x27;100%&#x27;</span>)</span><br><span class="line"> .<span class="title function_">height</span>(<span class="string">&#x27;100%&#x27;</span>)</span><br></pre></td></tr></table></figure>

<h2 id="flexGrow-拉伸"><a href="#flexGrow-拉伸" class="headerlink" title="flexGrow  拉伸"></a>flexGrow  拉伸</h2><figure class="highlight javascript"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">设置父容器的剩余空间分配给此属性所在组件的比例。</span><br></pre></td></tr></table></figure>

<h2 id="flexShrink-压缩"><a href="#flexShrink-压缩" class="headerlink" title="flexShrink 压缩"></a>flexShrink 压缩</h2><figure class="highlight javascript"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">设置父容器压缩尺寸分配给此属性所在组件的比例。</span><br></pre></td></tr></table></figure>

<h2 id="layoutWeight"><a href="#layoutWeight" class="headerlink" title="layoutWeight"></a>layoutWeight</h2><figure class="highlight javascript"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br></pre></td><td class="code"><pre><span class="line">父容器尺寸确定时，设置了layoutWeight属性的子元素与兄弟元素占主轴尺寸按照权重进行分配，忽略元素本身尺寸设置，表示自适应占满剩余空间。</span><br><span class="line">仅在<span class="title class_">Row</span>/<span class="title class_">Column</span>/<span class="title class_">Flex</span>布局中生效。</span><br><span class="line">可选值为大于等于<span class="number">0</span>的数字，或者可以转换为数字的字符串。</span><br><span class="line">* 对主轴剩余空间按照权重进行分配，先满足未设置layoutWeight属性的元素空间，剩下的空间在根据权重分配。</span><br></pre></td></tr></table></figure>

<h2 id="displayPriority"><a href="#displayPriority" class="headerlink" title="displayPriority"></a>displayPriority</h2><figure class="highlight javascript"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">设置当前组件在布局容器中显示的优先级，当父容器空间不足时，低优先级的组件会被隐藏。仅在<span class="title class_">Row</span>/<span class="title class_">Column</span>/<span class="title class_">Flex</span>(单行)容器组件中生效。</span><br></pre></td></tr></table></figure>

<h1 id="触摸事件控制-hitTestBehavior"><a href="#触摸事件控制-hitTestBehavior" class="headerlink" title="触摸事件控制 hitTestBehavior"></a>触摸事件控制 hitTestBehavior</h1><p><a target="_blank" rel="noopener" href="https://developer.harmonyos.com/cn/docs/documentation/doc-references-V3/ts-universal-attributes-hit-test-behavior-0000001427744800-V3">事件分发模式</a></p>
<blockquote>
<p>给控件设置不同的响应模式，从而控制触屏事件分发。该属性有四个选项值，分别是：</p>
<p>Default     默认触摸测试效果，自身和子节点都响应触摸测试，但会阻塞兄弟节点的触摸测试。</p>
<p>Block        自身响应触摸测试，阻塞子节点和兄弟节点的触摸测试。</p>
<p>Transparent  自身和子节点都响应触摸测试，不会阻塞兄弟节点的触摸测试。</p>
<p>None         自身不响应触摸测试，不会阻塞子节点和兄弟节点的触摸测试。</p>
</blockquote>
<figure class="highlight plaintext"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">事件的传递先从最上层开始获取，然后根据条件一层一层往下传递，最后返回给最上层根布局</span><br></pre></td></tr></table></figure>

<h1 id="位置设置"><a href="#位置设置" class="headerlink" title="位置设置"></a>位置设置</h1><p><a target="_blank" rel="noopener" href="https://developer.harmonyos.com/cn/docs/documentation/doc-references-V3/ts-universal-attributes-location-0000001427584824-V3">位置设置</a></p>
<h2 id="markAnchor"><a href="#markAnchor" class="headerlink" title="markAnchor"></a>markAnchor</h2><figure class="highlight javascript"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line">基点设置</span><br><span class="line">设置元素在定位是的瞄点，默认以元素左上角x=<span class="number">0</span>，y=<span class="number">0</span>进行偏移，可以设置指定位置进行瞄点。通常配合position和offset进行使用</span><br></pre></td></tr></table></figure>

<h2 id="offset"><a href="#offset" class="headerlink" title="offset"></a>offset</h2><figure class="highlight javascript"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br></pre></td><td class="code"><pre><span class="line">相对定位</span><br><span class="line">设置元素相对于父容器的偏移位置，不影响父容器布局</span><br><span class="line">默认情况下都是左上角对左上角进行偏移。可使用markAnchor对基准点进行修改</span><br></pre></td></tr></table></figure>

<h2 id="position"><a href="#position" class="headerlink" title="position"></a>position</h2><figure class="highlight javascript"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br></pre></td><td class="code"><pre><span class="line">绝对定位</span><br><span class="line">设置元素相对于父容器的偏移位置，不影响父容器布局</span><br><span class="line">默认情况下都是左上角对左上角进行偏移。可使用markAnchor对基准点进行修改</span><br></pre></td></tr></table></figure>

<h1 id="浮层-overlay"><a href="#浮层-overlay" class="headerlink" title="浮层 overlay"></a>浮层 overlay</h1><figure class="highlight plaintext"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">在当前组件上，增加遮罩文本。</span><br></pre></td></tr></table></figure>

<h1 id="形状裁剪-clip-mask"><a href="#形状裁剪-clip-mask" class="headerlink" title="形状裁剪 clip  mask"></a><a target="_blank" rel="noopener" href="https://developer.huawei.com/consumer/cn/doc/harmonyos-references-V2/ts-universal-attributes-sharp-clipping-0000001477981173-V2">形状裁剪</a> clip  mask</h1><figure class="highlight plaintext"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br></pre></td><td class="code"><pre><span class="line">* clip</span><br><span class="line">  参数为相应类型的组件，按指定的形状对当前组件进行裁剪；参数为boolean类型时，设置是否按照父容器边缘轮廓进行裁剪。</span><br><span class="line">* mask</span><br><span class="line">  在当前组件上加上指定形状的遮罩。</span><br></pre></td></tr></table></figure>

<h1 id="浮层-overlay-1"><a href="#浮层-overlay-1" class="headerlink" title="浮层 overlay"></a>浮层 overlay</h1><figure class="highlight plaintext"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">在当前组件上，增加遮罩文本。</span><br></pre></td></tr></table></figure>

<h1 id="获取配置参数，在配置文件中设置自定义参数-metadata"><a href="#获取配置参数，在配置文件中设置自定义参数-metadata" class="headerlink" title="获取配置参数，在配置文件中设置自定义参数 metadata"></a>获取配置参数，在配置文件中设置自定义参数 metadata</h1><figure class="highlight javascript"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">通过@ohos.<span class="property">bundle</span>.<span class="property">bundleManager</span>可以获取配置文件中的所有配置信息，如果要获取metadata需要设置<span class="variable constant_">GET_BUNDLE_INFO_WITH_METADATA</span></span><br></pre></td></tr></table></figure>

<p><a target="_blank" rel="noopener" href="https://developer.harmonyos.com/cn/docs/documentation/doc-references-V3/js-apis-bundlemanager-0000001427585060-V3">bundlemanager</a></p>
<h1 id="ZIP压缩"><a href="#ZIP压缩" class="headerlink" title="ZIP压缩"></a>ZIP压缩</h1><figure class="highlight javascript"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">鸿蒙系统天生自带zip解压缩功能，使用@ohos.<span class="property">zlib</span> (<span class="title class_">Zip</span>模块)可进行解压缩包</span><br></pre></td></tr></table></figure>

<p><a target="_blank" rel="noopener" href="https://developer.harmonyos.com/cn/docs/documentation/doc-references-V3/js-apis-zlib-0000001428061924-V3">解压缩ZIP</a></p>
</article><div class="post-copyright"><div class="post-copyright__author"><span class="post-copyright-meta"><i class="fas fa-circle-user fa-fw"></i>文章作者: </span><span class="post-copyright-info"><a href="https://houyudong1989.gitee.io/blog">侯玉东</a></span></div><div class="post-copyright__type"><span class="post-copyright-meta"><i class="fas fa-square-arrow-up-right fa-fw"></i>文章链接: </span><span class="post-copyright-info"><a href="https://houyudong1989.gitee.io/blog/2023/12/04/harmonyOS/%E5%B8%B8%E7%94%A8%E7%9F%A5%E8%AF%86%E7%82%B9/">https://houyudong1989.gitee.io/blog/2023/12/04/harmonyOS/%E5%B8%B8%E7%94%A8%E7%9F%A5%E8%AF%86%E7%82%B9/</a></span></div><div class="post-copyright__notice"><span class="post-copyright-meta"><i class="fas fa-circle-exclamation fa-fw"></i>版权声明: </span><span class="post-copyright-info">本博客所有文章除特别声明外，均采用 <a href="https://creativecommons.org/licenses/by-nc-sa/4.0/" target="_blank">CC BY-NC-SA 4.0</a> 许可协议。转载请注明来自 <a href="https://houyudong1989.gitee.io/blog" target="_blank">East'blog</a>！</span></div></div><div class="tag_share"><div class="post-meta__tag-list"><a class="post-meta__tags" href="/blog/tags/harmonyOS/">harmonyOS</a></div><div class="post_share"><div class="social-share" data-image="/blog/img/library1.jpeg" data-sites="facebook,twitter,wechat,weibo,qq"></div><link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/butterfly-extsrc/sharejs/dist/css/share.min.css" media="print" onload="this.media='all'"><script src="https://cdn.jsdelivr.net/npm/butterfly-extsrc/sharejs/dist/js/social-share.min.js" defer></script></div></div><nav class="pagination-post" id="pagination"><div class="prev-post pull-left"><a href="/blog/2023/12/09/c++/%E7%BC%96%E8%AF%91gmp%E5%92%8Cmpfr/" title=""><img class="cover" src="/blog/img/library1.jpeg" onerror="onerror=null;src='/blog/img/friend_404.gif'" alt="cover of previous post"><div class="pagination-info"><div class="label">上一篇</div><div class="prev_info"></div></div></a></div><div class="next-post pull-right"><a href="/blog/2023/12/02/harmonyOS/Canvas%E7%BB%98%E5%88%B6%E6%9F%B1%E7%8A%B6%E5%9B%BE/" title="canvas绘制柱状图"><img class="cover" src="/blog/img/library1.jpeg" onerror="onerror=null;src='/blog/img/friend_404.gif'" alt="cover of next post"><div class="pagination-info"><div class="label">下一篇</div><div class="next_info">canvas绘制柱状图</div></div></a></div></nav><div class="relatedPosts"><div class="headline"><i class="fas fa-thumbs-up fa-fw"></i><span>相关推荐</span></div><div class="relatedPosts-list"><div><a href="/blog/2024/01/20/harmonyOS/ArkUI-X/" title="ArkUI-X"><img class="cover" src="/blog/img/library1.jpeg" alt="cover"><div class="content is-center"><div class="date"><i class="far fa-calendar-alt fa-fw"></i> 2024-01-20</div><div class="title">ArkUI-X</div></div></a></div><div><a href="/blog/2023/12/15/harmonyOS/Canvas%E7%BB%98%E5%88%B6%E6%8A%98%E7%BA%BF%E5%9B%BE/" title="canvas绘制折线图"><img class="cover" src="/blog/img/library1.jpeg" alt="cover"><div class="content is-center"><div class="date"><i class="far fa-calendar-alt fa-fw"></i> 2023-12-15</div><div class="title">canvas绘制折线图</div></div></a></div><div><a href="/blog/2023/12/02/harmonyOS/Canvas%E7%BB%98%E5%88%B6%E6%9F%B1%E7%8A%B6%E5%9B%BE/" title="canvas绘制柱状图"><img class="cover" src="/blog/img/library1.jpeg" alt="cover"><div class="content is-center"><div class="date"><i class="far fa-calendar-alt fa-fw"></i> 2023-12-02</div><div class="title">canvas绘制柱状图</div></div></a></div><div><a href="/blog/2024/03/25/harmonyOS/commonevent%E3%80%81eventhub%E3%80%81emitter%E5%92%8Cworker%E4%BD%BF%E7%94%A8/" title="commonevent、eventhub、emitter和worker使用"><img class="cover" src="/blog/img/library1.jpeg" alt="cover"><div class="content is-center"><div class="date"><i class="far fa-calendar-alt fa-fw"></i> 2024-03-25</div><div class="title">commonevent、eventhub、emitter和worker使用</div></div></a></div><div><a href="/blog/2023/11/05/harmonyOS/hdc/" title="hdc 使用帮助"><img class="cover" src="/blog/img/library1.jpeg" alt="cover"><div class="content is-center"><div class="date"><i class="far fa-calendar-alt fa-fw"></i> 2023-11-05</div><div class="title">hdc 使用帮助</div></div></a></div><div><a href="/blog/2023/12/26/harmonyOS/router%E8%B7%AF%E7%94%B1/" title="router路由跳转"><img class="cover" src="/blog/img/library1.jpeg" alt="cover"><div class="content is-center"><div class="date"><i class="far fa-calendar-alt fa-fw"></i> 2023-12-26</div><div class="title">router路由跳转</div></div></a></div></div></div></div><div class="aside-content" id="aside-content"><div class="card-widget card-info"><div class="is-center"><div class="avatar-img"><img src="/blog/img/head.jpg" onerror="this.onerror=null;this.src='/blog/img/friend_404.gif'" alt="avatar"/></div><div class="author-info__name">侯玉东</div><div class="author-info__description">生命不息，奋斗不止</div></div><div class="card-info-data site-data is-center"><a href="/blog/archives/"><div class="headline">文章</div><div class="length-num">70</div></a><a href="/blog/tags/"><div class="headline">标签</div><div class="length-num">26</div></a><a href="/blog/categories/"><div class="headline">分类</div><div class="length-num">18</div></a></div><a id="card-info-btn" target="_blank" rel="noopener" href="https://gitee.com/houyudong1989"><i class="fab fa-github"></i><span>Follow Me</span></a><div class="card-info-social-icons is-center"><a class="social-icon" href="https://gitee.com/houyudong1989" target="_blank" title="Github"><i class="fab fa-github" style="color: #24292e;"></i></a><a class="social-icon" href="mailto:420098321@qq.com" target="_blank" title="Email"><i class="fas fa-envelope" style="color: #4a7dbe;"></i></a></div></div><div class="card-widget card-announcement"><div class="item-headline"><i class="fas fa-bullhorn fa-shake"></i><span>公告</span></div><div class="announcement_content">欢迎来到我的博客！！！</div></div><div class="sticky_layout"><div class="card-widget" id="card-toc"><div class="item-headline"><i class="fas fa-stream"></i><span>目录</span><span class="toc-percentage"></span></div><div class="toc-content"><ol class="toc"><li class="toc-item toc-level-1"><a class="toc-link" href="#%E5%85%83%E7%B4%A0%E7%BA%A6%E6%9D%9F"><span class="toc-number">1.</span> <span class="toc-text">元素约束</span></a><ol class="toc-child"><li class="toc-item toc-level-2"><a class="toc-link" href="#%E6%8C%87%E5%AE%9A%E5%B8%83%E5%B1%80%E3%80%81%E6%8E%A7%E4%BB%B6%E5%AE%BD%E9%AB%98%E6%AF%94-aspectRatio"><span class="toc-number">1.1.</span> <span class="toc-text">指定布局、控件宽高比 aspectRatio</span></a></li><li class="toc-item toc-level-2"><a class="toc-link" href="#flexGrow-%E6%8B%89%E4%BC%B8"><span class="toc-number">1.2.</span> <span class="toc-text">flexGrow  拉伸</span></a></li><li class="toc-item toc-level-2"><a class="toc-link" href="#flexShrink-%E5%8E%8B%E7%BC%A9"><span class="toc-number">1.3.</span> <span class="toc-text">flexShrink 压缩</span></a></li><li class="toc-item toc-level-2"><a class="toc-link" href="#layoutWeight"><span class="toc-number">1.4.</span> <span class="toc-text">layoutWeight</span></a></li><li class="toc-item toc-level-2"><a class="toc-link" href="#displayPriority"><span class="toc-number">1.5.</span> <span class="toc-text">displayPriority</span></a></li></ol></li><li class="toc-item toc-level-1"><a class="toc-link" href="#%E8%A7%A6%E6%91%B8%E4%BA%8B%E4%BB%B6%E6%8E%A7%E5%88%B6-hitTestBehavior"><span class="toc-number">2.</span> <span class="toc-text">触摸事件控制 hitTestBehavior</span></a></li><li class="toc-item toc-level-1"><a class="toc-link" href="#%E4%BD%8D%E7%BD%AE%E8%AE%BE%E7%BD%AE"><span class="toc-number">3.</span> <span class="toc-text">位置设置</span></a><ol class="toc-child"><li class="toc-item toc-level-2"><a class="toc-link" href="#markAnchor"><span class="toc-number">3.1.</span> <span class="toc-text">markAnchor</span></a></li><li class="toc-item toc-level-2"><a class="toc-link" href="#offset"><span class="toc-number">3.2.</span> <span class="toc-text">offset</span></a></li><li class="toc-item toc-level-2"><a class="toc-link" href="#position"><span class="toc-number">3.3.</span> <span class="toc-text">position</span></a></li></ol></li><li class="toc-item toc-level-1"><a class="toc-link" href="#%E6%B5%AE%E5%B1%82-overlay"><span class="toc-number">4.</span> <span class="toc-text">浮层 overlay</span></a></li><li class="toc-item toc-level-1"><a class="toc-link" href="#%E5%BD%A2%E7%8A%B6%E8%A3%81%E5%89%AA-clip-mask"><span class="toc-number">5.</span> <span class="toc-text">形状裁剪 clip  mask</span></a></li><li class="toc-item toc-level-1"><a class="toc-link" href="#%E6%B5%AE%E5%B1%82-overlay-1"><span class="toc-number">6.</span> <span class="toc-text">浮层 overlay</span></a></li><li class="toc-item toc-level-1"><a class="toc-link" href="#%E8%8E%B7%E5%8F%96%E9%85%8D%E7%BD%AE%E5%8F%82%E6%95%B0%EF%BC%8C%E5%9C%A8%E9%85%8D%E7%BD%AE%E6%96%87%E4%BB%B6%E4%B8%AD%E8%AE%BE%E7%BD%AE%E8%87%AA%E5%AE%9A%E4%B9%89%E5%8F%82%E6%95%B0-metadata"><span class="toc-number">7.</span> <span class="toc-text">获取配置参数，在配置文件中设置自定义参数 metadata</span></a></li><li class="toc-item toc-level-1"><a class="toc-link" href="#ZIP%E5%8E%8B%E7%BC%A9"><span class="toc-number">8.</span> <span class="toc-text">ZIP压缩</span></a></li></ol></div></div><div class="card-widget card-recent-post"><div class="item-headline"><i class="fas fa-history"></i><span>最新文章</span></div><div class="aside-list"><div class="aside-list-item"><a class="thumbnail" href="/blog/2024/05/06/c++/5%E3%80%81%E5%AD%97%E7%AC%A6%E5%92%8C%E5%AD%97%E7%AC%A6%E4%B8%B2/" title="字符和字符串"><img src="/blog/img/library1.jpeg" onerror="this.onerror=null;this.src='/blog/img/friend_404.gif'" alt="字符和字符串"/></a><div class="content"><a class="title" href="/blog/2024/05/06/c++/5%E3%80%81%E5%AD%97%E7%AC%A6%E5%92%8C%E5%AD%97%E7%AC%A6%E4%B8%B2/" title="字符和字符串">字符和字符串</a><time datetime="2024-05-06T11:15:27.280Z" title="发表于 2024-05-06 19:15:27">2024-05-06</time></div></div><div class="aside-list-item"><a class="thumbnail" href="/blog/2024/05/06/c++/4%E3%80%81%E6%8C%87%E9%92%88%E5%92%8C%E5%87%BD%E6%95%B0%E6%8C%87%E9%92%88/" title="指针和函数指针"><img src="/blog/img/library1.jpeg" onerror="this.onerror=null;this.src='/blog/img/friend_404.gif'" alt="指针和函数指针"/></a><div class="content"><a class="title" href="/blog/2024/05/06/c++/4%E3%80%81%E6%8C%87%E9%92%88%E5%92%8C%E5%87%BD%E6%95%B0%E6%8C%87%E9%92%88/" title="指针和函数指针">指针和函数指针</a><time datetime="2024-05-06T11:14:29.047Z" title="发表于 2024-05-06 19:14:29">2024-05-06</time></div></div><div class="aside-list-item"><a class="thumbnail" href="/blog/2024/05/05/python/7%E3%80%81m3u8%E8%A7%86%E9%A2%91%E6%A0%BC%E5%BC%8F/" title="m3u8格式"><img src="/blog/img/library1.jpeg" onerror="this.onerror=null;this.src='/blog/img/friend_404.gif'" alt="m3u8格式"/></a><div class="content"><a class="title" href="/blog/2024/05/05/python/7%E3%80%81m3u8%E8%A7%86%E9%A2%91%E6%A0%BC%E5%BC%8F/" title="m3u8格式">m3u8格式</a><time datetime="2024-05-05T01:43:26.865Z" title="发表于 2024-05-05 09:43:26">2024-05-05</time></div></div><div class="aside-list-item"><a class="thumbnail" href="/blog/2024/04/30/android/charles%E5%AE%89%E5%8D%93%E6%89%8B%E6%9C%BA%E6%8A%93%E5%8C%85/" title="charles 抓包"><img src="/blog/img/library1.jpeg" onerror="this.onerror=null;this.src='/blog/img/friend_404.gif'" alt="charles 抓包"/></a><div class="content"><a class="title" href="/blog/2024/04/30/android/charles%E5%AE%89%E5%8D%93%E6%89%8B%E6%9C%BA%E6%8A%93%E5%8C%85/" title="charles 抓包">charles 抓包</a><time datetime="2024-04-30T06:49:29.279Z" title="发表于 2024-04-30 14:49:29">2024-04-30</time></div></div><div class="aside-list-item"><a class="thumbnail" href="/blog/2024/04/26/python/13%E3%80%81playwright/" title="playwright"><img src="/blog/img/library1.jpeg" onerror="this.onerror=null;this.src='/blog/img/friend_404.gif'" alt="playwright"/></a><div class="content"><a class="title" href="/blog/2024/04/26/python/13%E3%80%81playwright/" title="playwright">playwright</a><time datetime="2024-04-26T07:30:36.069Z" title="发表于 2024-04-26 15:30:36">2024-04-26</time></div></div></div></div></div></div></main><footer id="footer"><div id="footer-wrap"><div class="copyright">&copy;2020 - 2024 By 侯玉东</div><div class="framework-info"><span>框架 </span><a target="_blank" rel="noopener" href="https://hexo.io">Hexo</a><span class="footer-separator">|</span><span>主题 </span><a target="_blank" rel="noopener" href="https://github.com/jerryc127/hexo-theme-butterfly">Butterfly</a></div></div></footer></div><div id="rightside"><div id="rightside-config-hide"><button id="readmode" type="button" title="阅读模式"><i class="fas fa-book-open"></i></button><button id="darkmode" type="button" title="浅色和深色模式转换"><i class="fas fa-adjust"></i></button><button id="hide-aside-btn" type="button" title="单栏和双栏切换"><i class="fas fa-arrows-alt-h"></i></button></div><div id="rightside-config-show"><button id="rightside-config" type="button" title="设置"><i class="fas fa-cog fa-spin"></i></button><button class="close" id="mobile-toc-button" type="button" title="目录"><i class="fas fa-list-ul"></i></button><button id="go-up" type="button" title="回到顶部"><span class="scroll-percent"></span><i class="fas fa-arrow-up"></i></button></div></div><div><script src="/blog/js/utils.js"></script><script src="/blog/js/main.js"></script><script src="https://cdn.jsdelivr.net/npm/@fancyapps/ui/dist/fancybox/fancybox.umd.min.js"></script><div class="js-pjax"></div><div class="aplayer no-destroy" data-id="8873950678" data-server="netease" data-type="playlist" data-fixed="true" data-autoplay="true"> </div><script defer="defer" id="ribbon" src="https://cdn.jsdelivr.net/npm/butterfly-extsrc/dist/canvas-ribbon.min.js" size="150" alpha="0.6" zIndex="-1" mobile="false" data-click="false"></script><script defer="defer" id="fluttering_ribbon" mobile="false" src="https://cdn.jsdelivr.net/npm/butterfly-extsrc/dist/canvas-fluttering-ribbon.min.js"></script><script id="click-heart" src="https://cdn.jsdelivr.net/npm/butterfly-extsrc/dist/click-heart.min.js" async="async" mobile="false"></script><link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/aplayer/dist/APlayer.min.css" media="print" onload="this.media='all'"><script src="https://cdn.jsdelivr.net/npm/aplayer/dist/APlayer.min.js"></script><script src="https://cdn.jsdelivr.net/npm/butterfly-extsrc/metingjs/dist/Meting.min.js"></script><script src="https://cdn.jsdelivr.net/npm/pjax/pjax.min.js"></script><script>let pjaxSelectors = ["head > title","#config-diff","#body-wrap","#rightside-config-hide","#rightside-config-show",".js-pjax"]

var pjax = new Pjax({
  elements: 'a:not([target="_blank"])',
  selectors: pjaxSelectors,
  cacheBust: false,
  analytics: false,
  scrollRestoration: false
})

document.addEventListener('pjax:send', function () {

  // removeEventListener
  btf.removeGlobalFnEvent('pjax')
  btf.removeGlobalFnEvent('themeChange')

  document.getElementById('rightside').classList.remove('rightside-show')
  
  if (window.aplayers) {
    for (let i = 0; i < window.aplayers.length; i++) {
      if (!window.aplayers[i].options.fixed) {
        window.aplayers[i].destroy()
      }
    }
  }

  typeof typed === 'object' && typed.destroy()

  //reset readmode
  const $bodyClassList = document.body.classList
  $bodyClassList.contains('read-mode') && $bodyClassList.remove('read-mode')

  typeof disqusjs === 'object' && disqusjs.destroy()
})

document.addEventListener('pjax:complete', function () {
  window.refreshFn()

  document.querySelectorAll('script[data-pjax]').forEach(item => {
    const newScript = document.createElement('script')
    const content = item.text || item.textContent || item.innerHTML || ""
    Array.from(item.attributes).forEach(attr => newScript.setAttribute(attr.name, attr.value))
    newScript.appendChild(document.createTextNode(content))
    item.parentNode.replaceChild(newScript, item)
  })

  GLOBAL_CONFIG.islazyload && window.lazyLoadInstance.update()

  typeof panguInit === 'function' && panguInit()

  // google analytics
  typeof gtag === 'function' && gtag('config', '', {'page_path': window.location.pathname});

  // baidu analytics
  typeof _hmt === 'object' && _hmt.push(['_trackPageview',window.location.pathname]);

  typeof loadMeting === 'function' && document.getElementsByClassName('aplayer').length && loadMeting()

  // prismjs
  typeof Prism === 'object' && Prism.highlightAll()
})

document.addEventListener('pjax:error', e => {
  if (e.request.status === 404) {
    pjax.loadUrl('/blog/404.html')
  }
})</script><script async data-pjax src="//busuanzi.ibruce.info/busuanzi/2.3/busuanzi.pure.mini.js"></script></div></body></html>